Exploding cars forbidden in China

This sign makes it clear that cars are prohibited from exploding in China. Violators will be shots and their parents will be charged for the bullets.

Rachel says: "I saw these strange signs all over Beijing when I was there this past summer. None of the native Chinese people I traveled with knew what they were supposed to mean. Even our taxi driver didn't know. Anyone have a clue?" Link(If you know what the sign really means, post your comment here. Please don't email me about it.)

Update:

(Click on thumbnail for enlargement) Spoilsport convenience store in Nagoya, Japan forbids customers from bringing bombs with lit fuses and skulls on them into the store. (Thanks, Michael!)

(Click on thumbnail for enlargement) In this Cambodian store, you're asked to leave your knife, pistol, grenade, and dog at the door. But machetes, sawed-off shotguns, and C4 aren't expressly prohibited. (Thanks, Waylon!)